Luíza M Garlini1, Fernanda D Alves2, Luciane B Ceretta3, Ingrid S Perry3,4, Gabriela C Souza5,6,7, Nadine O Clausell8,9. 1. Post-Graduate Program in Cardiovascular Sciences, Faculty of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil. 2. Centro Universitário Ritter dos Reis, Porto Alegre, Brazil. 3. Post-Graduate Program in Collective Health, Academic Health Unit, Universidade do Extremo Sul Catarinense, Criciúma, Brazil. 4. Food and Nutrition Research Center, Hospital de Clínicas de Porto Alegre/Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil. 5. Food and Nutrition Research Center, Hospital de Clínicas de Porto Alegre/Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil. gcsouza@hcpa.edu.br. 6. Department of Nutrition, Faculty of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil. gcsouza@hcpa.edu.br. 7. Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil. gcsouza@hcpa.edu.br. 8. Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil. 9. Department of Internal Medicine, Faculty of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Abstract
BACKGROUND/ OBJECTIVES: The phase angle, expressed through bioelectrical impedance, has been studied as a prognostic marker in several health conditions. As this issue is still conflicting, the question whether this parameter correlates with mortality in the most diverse clinical situations remains. Therefore, this study aimed to evaluate the relationship between phase angle and mortality through a systematic review of the literature. SUBJECTS/ METHODS: This research was conducted in electronic databases (Pubmed, Embase, Cochrane, Lilacs, Scielo, e Scopus), and included studies that had phase angle as a variable of interest and mortality/survival as an outcome. Data were extracted independently by two reviewers and disagreements were assessed by a third reviewer. RESULTS: Forty-eight of 455 papers were assessed and an amount of 42 showed a correlation between phase angle and mortality. CONCLUSIONS: Phase angle seems to be a good indicator for mortality in many clinical situations and can be used in screening individuals prone to this outcome.
BACKGROUND/ OBJECTIVES: The phase angle, expressed through bioelectrical impedance, has been studied as a prognostic marker in several health conditions. As this issue is still conflicting, the question whether this parameter correlates with mortality in the most diverse clinical situations remains. Therefore, this study aimed to evaluate the relationship between phase angle and mortality through a systematic review of the literature. SUBJECTS/ METHODS: This research was conducted in electronic databases (Pubmed, Embase, Cochrane, Lilacs, Scielo, e Scopus), and included studies that had phase angle as a variable of interest and mortality/survival as an outcome. Data were extracted independently by two reviewers and disagreements were assessed by a third reviewer. RESULTS: Forty-eight of 455 papers were assessed and an amount of 42 showed a correlation between phase angle and mortality. CONCLUSIONS: Phase angle seems to be a good indicator for mortality in many clinical situations and can be used in screening individuals prone to this outcome.
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